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Sex differences in trunk, pelvis, hip and knee kinematics and eccentric hip torque in adolescents.
Clin Biomech (Bristol, Avon). 2014 Nov; 29(9):1063-9.CB

Abstract

BACKGROUND

Adolescents have a high incidence of knee joint dysfunctions, with up to 28% of adolescents reporting knee pain. Although adolescent females have a greater incidence of knee injuries in comparison to males, few studies conducted biomechanical evaluations in this population aiming to identify sex differences. If trunk and/or lower limb biomechanical impairments are identified in female adolescents, the implementation of early interventions for injury prevention will be better justified. The purpose of this study was to compare the trunk, pelvis, hip and knee kinematics during a single-leg squat task, as well as the isokinetic eccentric hip torque, between male and female healthy adolescents.

METHODS

Forty-four healthy adolescents were divided into two groups, group of males (n=22) and group of females (n=22). Kinematics during single-leg squat were assessed using a electromagnetic tracking system. For the evaluation of eccentric hip torque in the three planes an isokinetic dynamometer was used. Group differences were assessed using a one-way multivariate analysis of variance.

FINDINGS

Results showed that adolescent females presented greater hip adduction, hip external rotation and knee abduction, as well as smaller trunk flexion during single-leg squat in comparison to males. Additionally, adolescent females showed smaller isokinetic eccentric hip torque normalized by body mass in all planes in comparison to males.

INTERPRETATION

These sex differences in terms of trunk/lower limb kinematics and eccentric hip torque generation might play an important role in the greater incidence of overuse knee injuries observed in adolescent females.

Authors+Show Affiliations

Federal University of São Carlos, Department of Physical Therapy, São Carlos, SP, Brazil.Federal University of São Carlos, Department of Physical Therapy, São Carlos, SP, Brazil. Electronic address: fserrao@ufscar.br.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25190109

Citation

Scattone Silva, Rodrigo, and Fábio Viadanna Serrão. "Sex Differences in Trunk, Pelvis, Hip and Knee Kinematics and Eccentric Hip Torque in Adolescents." Clinical Biomechanics (Bristol, Avon), vol. 29, no. 9, 2014, pp. 1063-9.
Scattone Silva R, Serrão FV. Sex differences in trunk, pelvis, hip and knee kinematics and eccentric hip torque in adolescents. Clin Biomech (Bristol, Avon). 2014;29(9):1063-9.
Scattone Silva, R., & Serrão, F. V. (2014). Sex differences in trunk, pelvis, hip and knee kinematics and eccentric hip torque in adolescents. Clinical Biomechanics (Bristol, Avon), 29(9), 1063-9. https://doi.org/10.1016/j.clinbiomech.2014.08.004
Scattone Silva R, Serrão FV. Sex Differences in Trunk, Pelvis, Hip and Knee Kinematics and Eccentric Hip Torque in Adolescents. Clin Biomech (Bristol, Avon). 2014;29(9):1063-9. PubMed PMID: 25190109.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sex differences in trunk, pelvis, hip and knee kinematics and eccentric hip torque in adolescents. AU - Scattone Silva,Rodrigo, AU - Serrão,Fábio Viadanna, Y1 - 2014/08/19/ PY - 2014/04/04/received PY - 2014/08/12/revised PY - 2014/08/13/accepted PY - 2014/9/6/entrez PY - 2014/9/6/pubmed PY - 2015/10/8/medline KW - Biomechanics KW - Gender KW - Isokinetic KW - Knee injuries KW - Patellofemoral pain SP - 1063 EP - 9 JF - Clinical biomechanics (Bristol, Avon) JO - Clin Biomech (Bristol, Avon) VL - 29 IS - 9 N2 - BACKGROUND: Adolescents have a high incidence of knee joint dysfunctions, with up to 28% of adolescents reporting knee pain. Although adolescent females have a greater incidence of knee injuries in comparison to males, few studies conducted biomechanical evaluations in this population aiming to identify sex differences. If trunk and/or lower limb biomechanical impairments are identified in female adolescents, the implementation of early interventions for injury prevention will be better justified. The purpose of this study was to compare the trunk, pelvis, hip and knee kinematics during a single-leg squat task, as well as the isokinetic eccentric hip torque, between male and female healthy adolescents. METHODS: Forty-four healthy adolescents were divided into two groups, group of males (n=22) and group of females (n=22). Kinematics during single-leg squat were assessed using a electromagnetic tracking system. For the evaluation of eccentric hip torque in the three planes an isokinetic dynamometer was used. Group differences were assessed using a one-way multivariate analysis of variance. FINDINGS: Results showed that adolescent females presented greater hip adduction, hip external rotation and knee abduction, as well as smaller trunk flexion during single-leg squat in comparison to males. Additionally, adolescent females showed smaller isokinetic eccentric hip torque normalized by body mass in all planes in comparison to males. INTERPRETATION: These sex differences in terms of trunk/lower limb kinematics and eccentric hip torque generation might play an important role in the greater incidence of overuse knee injuries observed in adolescent females. SN - 1879-1271 UR - https://www.unboundmedicine.com/medline/citation/25190109/Sex_differences_in_trunk_pelvis_hip_and_knee_kinematics_and_eccentric_hip_torque_in_adolescents_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0268-0033(14)00197-1 DB - PRIME DP - Unbound Medicine ER -